:root{
  --bg:#0c1630; /* Primary Dark Background (Deep Blue-Black) */
  --bg-soft:#17223e; /* Secondary Dark Background for Services section */
  --card:#1f2e50; /* Darker card background */
  --ink:#f0f4f8; /* Main text color (Off-White) */
  --muted:#a4b0c2; /* Muted text color for introductions/notes */
  --brand:#4fa0ff; /* Light Blue for contrast/accents */
  --brand-2:#7dbbff; /* Lighter Blue gradient end */
  --line:#324a77; /* Darker lines/borders */
  --radius:14px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.6 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
img{max-width:100%;display:block;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Header & Navigation */
.site-header{position:sticky;top:0;background:var(--bg);border-bottom:1px solid var(--line);z-index:90}
.nav{height:100px;display:flex;align-items:center;justify-content:space-between}
.brand img, .logo-svg{height:100px; width: auto;} 
@media (max-width:1000px){ .brand img, .logo-svg{height:80px} .nav{height:90px} }
@media (max-width:640px){
  .brand img, .logo-svg{height:70px}
  .nav{height:80px;}
  .container{padding:0 16px;}
  .menu{display:none;}
  .nav{justify-content: space-between;} 
}

/* Updated Menu link colors for dark theme */
.menu a{margin-left:22px;color:var(--ink);text-decoration:none;font-weight:600;letter-spacing:.2px;transition:color 0.2s ease}
.menu a:hover{color:var(--brand)}
.header-actions .btn-contact{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:var(--bg);border:none;padding:10px 14px;border-radius:12px;font-weight:700;text-decoration:none;transition:transform 0.2s ease, box-shadow 0.2s ease}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:12px 18px;border-radius:12px;border:1px solid var(--line);text-decoration:none;background:var(--bg-soft);color:var(--ink);transition:transform 0.2s ease, box-shadow 0.2s ease}
.btn-primary{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:var(--bg);border:none} /* Primary button text is dark for contrast */
.btn:hover{transform:translateY(-1px); box-shadow: 0 4px 10px rgba(79, 160, 255, 0.2);}

/* Hero Section */
.hero{position:relative;background:linear-gradient(180deg,var(--bg-soft),rgba(12, 22, 48, 0));padding:80px 0 56px;overflow:clip}
.hero::after{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:url('/logo.png') no-repeat center center;background-size:min(78vw,920px);opacity:.08;filter:grayscale(.2) contrast(1.05);pointer-events:none;z-index:-1;} /* Increased opacity slightly for dark background */

/* General Sections */
.section{padding:64px 0}
.section h2{font-size:clamp(22px,2.8vw,30px);margin:0 0 8px}
.section .intro{color:var(--muted);margin:0 0 24px}

/* Services Section */
.services{background:var(--bg-soft)}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.card{grid-column:span 4;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 4px 12px rgba(0, 0, 0, 0.2);transition:transform 0.2s ease, box-shadow 0.2s ease;}
.card:hover{transform:translateY(-3px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);}
.card h3{margin:0 0 8px;font-size:20px}
.card p{color:var(--muted); /* Use muted for service text for better legibility */}
.card .btn{margin-top:10px;background:var(--bg);border-color:var(--line); color:var(--brand)} /* Secondary buttons pop with brand color */
.card .btn.btn-primary{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:var(--bg);border:none}
@media (max-width:1000px){.card{grid-column:span 6}}
@media (max-width:640px){.card{grid-column:span 12}}

/* Contact Section & Form */
.contact-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;padding:32px; background:var(--bg-soft); border-radius:var(--radius);}
@media (max-width:1000px){.contact-wrap{grid-template-columns:1fr}}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-span{grid-column:1/-1}
label span{font-size:13px;color:var(--muted);display:block;margin-bottom:4px;}
.contact-form input,.contact-form textarea,.contact-form select{background:var(--bg);border:1px solid var(--line);padding:14px 14px;border-radius:12px;font-size:16px;width:100%; color:var(--ink); transition: border-color 0.2s, box-shadow 0.2s;}
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus{outline:none; border-color:var(--brand); box-shadow: 0 0 0 3px rgba(79, 160, 255, 0.25);}
.contact-form .big-text{min-height:260px;line-height:1.5; resize:vertical;}
.note{font-size:13px;color:var(--muted)}

/* Contact Aside List */
.bullet-list{list-style:disc; margin:10px 0 0 16px; padding-left:0; color:var(--ink);}
.bullet-list li{margin-bottom:6px;}

/* Footer */
details{border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:10px 0;background:var(--card)}
summary{cursor:pointer;font-weight:700;color:var(--ink)}
footer{border-top:1px solid var(--line);background:var(--bg);color:var(--muted);padding:32px 0}
footer .container{display: flex; justify-content: space-between; flex-wrap: wrap;}
footer a{color:var(--brand)}

/* Accessibility & Motion */
:focus-visible{outline:3px solid var(--brand);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{animation:none !important;transition:none !important}}